Holder for drilling mechanism



June 7, 1927. 1;631 ,683

E. c. HOLMES HOLDER FOR DRILLING MECHANISM Filed Sept. s, 1925 INVENTOR.

A TTORN E Y6 inatter described.

Patented June '7, 1927. V

til-run STATES EDWARD o'. HOLMES, or CINCINNATI, 011 10.

HOLDER FOR, DRILLING MECHANISM.

Application filed September 8, 1925. Serial No. 54,884.

My invention relates to holders for electrio and pneumatic drills and particularly to holders which are provided with spider arms extending from the bodies of the drills or the like for the manual transportation and alignment in use. I

In my copending application Serial No. 43385. of July 16th,, 1925, to which reference is hereby made, I have described a carriage tor drills which are particularly adapted to drive screw spikes such as are provided in my Patent No. 1.294268 and in my copending application Serial No. 29,212ot May 9, 1925. p 7

It is my object in the invention herein disclosed. to provide a manually movable hold er which is adapted to support a drill, and which will provide means for aligning a drill'so as to drivea screw spike on either side of a'rail or other structure which is adapted tohe secured with a screw spike.

It is my'obje'ct in'such aholder to provide a manually movable device which shall be adapted for use in minor repairs of such Variable character as to not require the larger carriage as described in my copending application. I

Referring to the drawin in which I have shown a preferred type of holder Figure 1 is an end elevation oft-he holder.

Figure 2 is a side elevation of the holder.

Figure 3' is plan view of one ot'the holder arms and a porting the holder.

It should be noted that the holder is specially adapted to guide and support an elec 'tric or pneumatic drill from which two sideways extending spider arms 'fllllllSll a man- "ual means of movlng and operating the mechanism. As such mechanisms arecon1- mon in the art and as mystructure is ada-pted for use with any type from which spider arms extend from opposite sides noshowing has been made of such a; drill. Generally indicated at 1 is a flat elongated plate which is adapted to'rest on a rail which is :to besecured to tie plates or cross ties in ordinary track construction. In the illustration I" have shown the Plate as having close to each end a boss 2. and a raised extension 3 for apurpose which will be here- The' bosses are provided with holes 4 into which studs 5 or other pivotal means may be secured- The holder is provided with upright extending members 6l1avinga rounded groove 7, in the exportion of thebase supc act center of the highest part of the upright.

The upright members extend sideways in alignmentwith the length. of the groove T and each side portion is provided with an elongated slot 8 of slightly wider extent than two uprights operable in a similarmanner is still within the range of my invention.

The elongated slotsare disposedin'alignment so that by tightening down the studs 5.

mounting the base in alignment with a rail and having the uprights disposed at the same angle-to the rail the center of the slots will extend an equal distance on each side of the rail tromiits center. Y

When the-holder is used for rails of difterent'sizes it will be obvious that by releasing the studs 5 and swivelling the upright to either side that the distance from the center of the rail of the slots 8 may be readily controlled and the uprights conveniently set at whatever angle to the rail willprovide a position for the drill directly over the position in which a spike is to be screwed to secure the rail to the cross tie.

In a foregoing paragraph I have noted that the width of the slots is slightly larger than would be required to provide a snug tit for spider arms of a drill. The purpose of such a construction is to provide sufficient clearance to allow the drill arms to move up and down in the slots, when'the uprights are at an angle to the rail.

For aligning the base member on. the rail I have provided pivoted lugs 9 mounted under the raised extensions 3 which have downavardly extending ends 10 whichmay he secured at a desired angle with the rail on which the holder rests so that the clamping arms may beadjustably swivelled to form guides for the holder which will align it and snugly fit thesides of the head of the rail to prevent the holder from rocking out of alignment. I

From the base of each side of the uprights adjacent theirlower ends I have provided stabilizer arms 11 whichare mounted inthe uprights and which extend down below the a base on each side. The preferable mountspider arms to the drill within the slots 8 I have found that by rounding the sides of the slots as shown at 15, the spider arms will have less tendency to bind when being moved up and down in the slots.

The operation of the holder to guide a drill with spider arms with which screw threaded spikes are to be secured, may be readily understood by reference to Figure l.

The drill when not in use may be disposed with a spider arm resting in each of the top grooves 7. lVhen a. spike is to be screwed into one or the other side of a tie to secure a rail, a spike is put in the chuck of the drill and the drill is lifted from the grooves 7 and placed in the slot on whichever side the spike to be secured. The depth of the slots will beonly enough to allow the chuck to screw in the spike so that there will be no danger of over-screwing the spike and ruining the drill, as would occur if the downward movement of the drill were not controlled and the drill was to be merely held in the hands. The position of the spike on one side of the rail being determined it will be readily observed that by lifting the drill from the slot on one side of the holder and inserting it in the slot on the other side of the holder the position of the spike will be exactly opposite the first mentioned spike which is usually the proper position. 7

The weight of such a holder will be great, so to lighten the weight without sacrificing strength I have reinforced the uprights with webs 16 and provided a central aperture '17 in the holder which furnishes a convenient hand hole at the top with which'the holder may be lifted from a rail and moved to some other position. 7

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, lu

1. A holder for screw spike driving mechanism comprising in con' bination a base member adapted to support the holder, swivellinguprights with means for detach ably securing the uprights in the base menr her and a pair of opposed elongated slot/sin the uprights adapted to guide spider arms of the driving mechanism, and means for aligning said base member on a rail, and

means, extended from the uprights adapted to prevent tilting of the holder.

2. A support for mechanism for driving screw threaded spikes having oppositely extended spider arms, comprising a holder adapted to align said arms in a downward vmovement of the mechanism, means for aligning the holder on a rail, and means for ad'ustin the aosition of the ali ning means for the arms With re t aligning aligning means for the holder, and stabiliz- 7 ing means adjustably mounted in the holder adapted to support the holder'from the base of a rail, i i

l. A support for a drill for driving screw spikes comprising a pair of interspaced arms having elongated slots therein with beveled sides, said slots disposed on each side equidistant from the center of the arms, a supporting base plate, meansfor aligning the base plate on a rail, a pivotal mounting for the arms in the base plate, and the central portion of said arms cut away to provide hand holes for transporting the holder.

5. A rail bracket for guiding a tool having a pair of handles by which said tool is supported comprising apair of substantially similar adjustably mounted plural guides each having guiding portions adapted to extend in substantially vertical planes on adapted to receive the handles ofthe tool.

6. A rail bracket for guiding a, tool hav-, ing a pairof handles by which said'tool is supported comprising a pair of substantially similar adjustably' mounted plural guides each side of a rail, and the guiding portions each having guiding portions adapted to extend substantially vertical planes on each slde of a rail, and said guiding portions consisting in uprights having slots therein which are adapted to'receive the handles of the tool. V

7. A rail bracket for guiding a tool'having a pair of handles by which said tool is supported comprising a pair of substantially similar adjustably mounted plural guides each having guiding portions'adapted to extend in substantially vertical planes on each side of a rail, the guiding portions adapted to receive the handles of the tool, said bracket provided with adjustable means for V aligning the bracket on a rail. V

8 A rail bracket for guiding a tool "havmg a pair of handles by which said tool is supported comprising a pair of substantially 7 similar adjustably mounted plural guides each having guiding portions adapted to extend in substantially vertical planes on each side of a rail, the guiding portions adapted to receive the handles of the tool, said bracket provided with adjustable means for aligning the bracket on rails having heads of differentwidths.

9. A rail bracket for guiding a tool having a pair of handles by which said tool is supported comprising a pair of substantially similar adjustably mounted plural guides each having guiding portions adapted to ex tend in substantially vertical planes on each side of a rail, the guiding portions adapted to receive the handles of the tool, said bracket provided With adjustable means for aligning the bracket on rails having heads of different widths. and said bracket having adjustable anti-tilting devices for aligning than one angle.

EDlVABD G. HOLMES. 

